| U.S. Marshals by Max Allan Collins - 1998 - 241 pages |
| U.S.A. Listed by J. B. Davids - 2003 - 220 pages |
| U.S.S.A. by David Madsen - 1989 - 369 pages |
| Uhuru by Robert Chester Ruark - 1962 - 555 pages |
| Uhuru by Robert Chester Ruark - 1962 - 555 pages |
| Ultimate Game by Ralph Glendinning - 1982 - 378 pages |
| Ultimate World by Hugo Gernsback - 2004 - 132 pages |
| Ultimatum by R. J. Pineiro - 1995 - 420 pages |
| Ultra Taiwan Fighter by Jon Schiller - 2008 - 282 pages |
| Un espía perfecto by John Le Carré - 2011 |
| Un traidor como los nuestros by John Le Carré - 2011 |
| Una pequeña ciudad en Alemania by John Le Carré - 2011 |
| Uncertain Paradise by John W. Cassell - 2008 - 352 pages |
| Uncertain Paradise by John W. Cassell - 2007 - 368 pages |
| Uncertain voyage by Dorothy Gilman - 1967 - 188 pages |
| Uncle Denny by Don Meyer - 2011 - 318 pages |
| Uncle Target by Gavin Lyall - 2011 - 304 pages |
| Uncle target by Gavin Lyall - 1988 - 300 pages |
| Uncle target by Gavin Lyall - 1988 - 256 pages |
| Uncommon Danger by Eric Ambler - 2009 - 256 pages |
| Uncommon Danger by Eric Ambler - 2009 - 256 pages |
| Uncorrected Proof by Louisiana Alba - 2008 - 305 pages |
| Under a False Flag by Tom Gething - 2012 |
| Under a False Flag by Tom Gething - 2012 |
| Under false colors by Peter A. Neissa - 2000 - 248 pages |
| Under pressure by Frank Herbert - 1956 - 178 pages |
| Under Siege by Stephen Coonts - 1991 - 544 pages |
| Under the Cover of Darkness by Duane De Mello - 2011 |
| Under the Ice by Richard P. Henrick - 2000 - 384 pages |
| Under the Ice by Richard P. Henrick - 2000 - 384 pages |
| Under the Ice by Richard P. Henrick, P Richard Henrick - 1989 - 383 pages |
| Under the Ice by Richard P. Henrick, P Richard Henrick - 1989 - 383 pages |
| Under the Lake by Stuart Woods - 2012 - 304 pages |
| Undercover by Keith Bulfin - 2011 - 388 pages |
| Undercover by Tony Harris, Ben Pierson - 2008 - 104 pages |
| Undercover by Laurinda D. Brown - 2004 - 256 pages |
| Undercover by B W Starmer - 2000 - 243 pages |
| Undertow by Tom Foote - 1998 - 344 pages |
| Undertow by Tom Foote - 1997 - 351 pages |
| Undue Influence by Steve Martini - 1996 - 462 pages |
| Undue Influence by Steve Martini - 1994 - 480 pages |
| Undue influence by Steve Martini - 1994 - 462 pages |
| Undue influence by Steve Martini - 1994 - 462 pages |
| Undue influence by Steve Martini - 1994 - 462 pages |
| Undue Influence by Steve Martini - 1994 - 480 pages |
| Undue influence by Steve Martini - 1994 - 462 pages |
| Unequal Justice by Beverly Lane Lorenz - 2009 |
| Unikorn by David M. Burton - 2000 - 436 pages |
| Unknown Soldier by Rick Sweetser - 2001 - 260 pages |
| Unknown Soldier by Michael Hastings - 1987 - 327 pages |
| Unknown Soldier by Michael Hastings - 1987 - 327 pages |
| Unnatural causes by Mark Olshaker - 1986 - 452 pages |
| Unsanctioned by E. G. Jones - 2010 |
| Until dark by Mariah Stewart - 2003 - 394 pages |
| Until the karma ends by Paul Adirex - 1996 - 369 pages |
| Uomo di Leningrado, L' by Francesco Santoianni - 2005 - 319 pages |
| Ussa 2020 by James E. Couch - 2002 - 224 pages |
| Utmost Good Faith by L. M. Shakespeare - 1988 - 232 pages |
| Uttermost South by Joseph Norwood - 2002 - 260 pages |
| Uża̜dleni by Tomasz Szymański - 1993 - 85 pages |